Calculation formula and aiming satellite measures in the process of antenna initialization has been presented in accordance with the two assignments of antenna's initial pointing and disturbance isolating. Several familiar tracking methods has been introduced and compared, and finally program tracking method has been adopted to realize the adjustment of initial antenna pointing.Secondly, this paper introduces the modular design used to the system's software. Also, three-axis control strategy has been applied to the antenna tracking system, and feed forward control based on the interrupt which can be measured is used to elevation and cross-level control, while the integration of outputs of gyroscopes are used to realize the position feedback in azimuth control. Particularly the Expert PID algorithm has been applied to the azimuth stabilized control which is proved feasible through the simulation. Kalman filtering has been applied to deal with the gyroscopes' zero drift, and dynamically adjust their zero values.Lastly, the result of system commissioning and error analysis has been given, as well the improvement direction of the system.
